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python,linux,django,gcc,pip
Django documentation as of v1.8 recommends using mysqlclient connector for the framework. I'm attempting to pip install the package on Ubuntu 14.04 with Python 3.4 and running into a GCC error that I'm unable to find reference to. I'm not an expert on compiling software, so was hoping somebody can...

linux,build,f#
I have been trying to build a project in F# on Linux that I have located here on github. It's a basic kata project that I am working on as a demo. However on Linux (specifically Ubuntu 14.04 LTS Desktop) I haven't been able to get it to build yet...

bash,if-statement
I currently have this bash script (which is located in my home directory, i.e., /home/fusion809/ and I am running it as root as it's necessary for the icon copying lines): cd /home/fusion809/Pictures/Icon* declare -a A={Arch,Debian,Fedora,Mageia,Manjaro,OpenSUSE} declare -a B={Adwaita,Faenza,gnome,Humanity} for i in $A; do for j in $B; do if test...

bash,sed
I have a script that I am writing that checks a value and then based on the value modifies it. I am trying to understand why it works this one way and not the other. Based on the google and stackoverflow searches I did, nothing really fits what I am...

bash,replace,count
Ten files located in a directory. Each file content has "apple" word. write a bash shell script to replace "apple" with "banana" in all ten files and Print the number of replacements for each file. Have tried in this way but dont know how to get number of replacement. can...

php,linux,apache,logging,permissions
I discovered the reason why I was not getting entries into my php_errors.log file related to permissions. Right now, I have set it to 666 (rw-rw-rw-) but surely this is a security weakness? Thus, my question. php.ini file: error_log /var/log/httpd/php_errors.log log_errors On # ls -ld /var/log /var/log/httpd /var/log/httpd/php_errors.log drwxr-xr-x 6...

linux,bash,awk
I have a very big CSV file (aprox. 10.000 rows and 400 columns) and I need to modify certain columns (like 15, 156, 220) to change format from 20140321132233 to 2014-03-21 13:22:33. All fields that I need to modify are datetime. I saw some examples using awk but for math...

linux,makefile,cmake,make
I use UBuntu 14.04 LTS. I need to build webkitgtk 2.8.3 Here is an example instruction which I have used: linuxfromscratch When I run sudo make -j8 I get following log: Scanning dependencies of target JavaScriptCore-4-gir Scanning dependencies of target fake-generated-webkitdom-headers [ 0%] Scanning dependencies of target WebKit2-fake-api-headers Scanning dependencies...

arrays,linux,bash
I want to modify an array cell, which I can do when I know the cell as a number. However here my cell position is given by $i. pomme[`${i}`]="" I tried without the `` and it doesn't work either? How am I suppose to do it?...

linux,linux-kernel,kernel,linux-device-driver,system-calls
In the below call trace we see function called ret_from_syscall. Which function is this ? When it will called during system call ? Where is the corresponding code for this ? May 7 16:40:34.322086 warn TCU-0 kernel: [cf83ddc0] [00009751] 0x9751 (unreliable) May 7 16:40:34.322086 warn TCU-0 kernel: [cf83ddd0] [c00469ac] do_syslog+0x198/0x424...

linux,bash,awk,sed,sh
I am trying to use a script to append the host name at the end of a multi-line entry of a specific Host_Alias field in sudoers file. The current sudoers file has an entry similar to : Host_Alias srv_linuxestate= \ host10,host12,host13,host1,host50,\ host16,host1,host2,host11,host15,host21,\ host3,host14 My required output would be something like...

linux,shell,wget
I need a quick help on customizing my wget command in a shell script: The wget command looks something like this: wget http://infamvn:8081/nexus/content/groups/LDM_REPO_LIN64/com/infa/com.infa. products.ldm.ingestion.server.scala/10.0.0.135.527-SNAPSHOT/com.infa.products.ldm.ingestion.server.scala-10.0.0.135.527-20150622.210643-1-sources.jar Here I'd like to add the 10.0.0.135.527 in a variable, so I created a script something like this: n = 10.0.0.135.527 wget...

bash,svn,svn-externals
I have multi externals need to be set within a file externals.txt and I attempt to change the svn:externals from a bash: svn pe svn:externals svn://hostname/branchname -F extenals.txt But the command throws out an error: svn: E205007: None of the environment variables SVN_EDITOR, VISUAL or EDITOR are set, and no...

linux,bash
In a bash script I have: Check="grep -e '"'\(-S mount\)'"' /etc/audit/audit.rules" set -x When you run it it shows it as: CHECK='grep -e '\''\(-S mount\)'\'' /etc/audit/audit.rules' Now it works exactly what I want but I want to understand it. Why is there 2 extra \'s?...

python,bash,environment-variables
I can't access my env var: import subprocess, os print os.environ.get('PATH') # Works well print os.environ.get('BONSAI') # doesn't work But the env var is well added in my /home/me/.bashrc: BONSAI=/home/me/Utils/bonsai_v3.2 export BONSAI And I can access this env var from a new terminal....

php,linux,fedora
Helllo, I have a little problem here. I have PHP 5.3 installed and it's accessible via php command, I also have php 5.5 accessible as php55 command. Now I need to force linux to use php55 when I write php command. Simple way: How I switch the versions of php?...

linux,bash,shell,awk,sed
I have a CSV file with columns A,B,C,D. Column D contains values on a scale of 0 to 1. I want to use AWK to write to a new column E base in values in column D. For example: if value in column D <0.7, value in column E =...

linux,multithreading,linux-kernel
Suppose I have a browser process like Firefox, that has pid = 123. Firefox has 5 opened tabs each running in a separate thread, so in total it has 5 threads. So I want to know in depth, how the kernel will separate the process into the thread to execute...

linux,awk
I have a file like this and would like to print $0 except the first two and last three lines in linux. Tried awk command but no luck, is there any options I am using the following command - I suppose I am doing something wrong, but not able to...

regex,linux,sed
I have a problem using SED. I have a php file whit this structure in the very first line: <?php echo 'first' ?><?php echo 'second' ?><?php echo 'third';?> I'm trying to remove the first two statements and have as a result: <?php echo 'third';?> I've tried this code: sed -i...

bash,shell,unix
So in my bash shell script, I have it running through a for loop. Inside the for loop, I use find "$myarray[i]" >> $tmp to look for a certain directory each time through the loop. Sometimes, it finds the variable in myarray[i] and sometimes it doesn't. When it does find...

bash
I have an alias gl which is an wrapper for git log. Basically like this function gitLog(){ if [ $# -eq 0 ] then git log else git log -n $1 } alias gl=gitLog I want to add an alias which just calls gitLog with an argument like this alias...

bash,shell,curl,command-line,pipe
When I run the curl command and direct the data to a file, I get back the content of the site as expected. $ curl "www.site.com" > file.txt $ head file.txt Top of site ... However, this command shows a progress bar, which I do not want: % Total %...

linux,shell,sed,grep,pattern-matching
I know how to match text using regex patterns but not how to manipulate them. I have used grep to match and extract lines from a text file, but I want to remove those lines from the text. How can I achieve this without having to write a python or...

c++,linux
I have a c++ code and I need to running from it a command to adjust the system time. so I thought using system("su root -c date hh:mm") command from my c++ code. The problem is that when I write 'su root -c date hh:mm' in the terminal its requires...

linux,shared-libraries
I need to use a particular libc to run a tool (cp). The problem is that this tool has to be used as argument of another tool (for example timeout) and I don't want to use the modified libc with this one. I tried to do: timeout 10 LD_LIBRARY_PATH=/path/to/mod/libc/ cp...

php,bash,drupal,terminal,macports
I'm trying to switch my Terminal PHP version to 5.4 because I ran into some issues with Drush while updating my Drupal core. http://drupal.stackexchange.com/questions/112090/drush-command-errors The reason for these issues is my Terminal PHP version is different then my localhost. php -v in Terminal returns PHP 5.5.13 (cli) but my localhost...

regex,string,bash,shell,grep
I've got a few peculiar issues with trying to search for a string inside of a .db file. The way I tried was by using grep, which does apparently find the string(s), although this is the output: $ grep "ext" *.db Binary file enormous.db matches There are a couple problems...

linux,bash,rhel
I am new to bash and writing a script to read variables that is stored on each line of a text file (there are thousands of these variables). So I tried to write a script that would read the lines and automatically output the solution to the screen and save...

linux,windows,sockets,network-programming,raspberry-pi
I'm trying to send a file from my Windows machine to my Raspberry-Pi 2, and I have a client and a server. The client should be able to send a zip file over the network to my server on my linux machine. I know my client and server work on...

linux,shell,command-line,awk,sed
Given a CSV file: id, fruit, binary 1, apple, 1 2, orange, 0 3, pear, 1 4, apple, 0 5, peach, 0 6, apple, 1 How can i calculate for each unique values in fruit, the number of times the binary value =1 / number of occurences of that fruit...

bash,awk
Is it possible? I was wondering how to do: Count fields differentiated by comma. Only the obtained first field of the previous step, count words differentiated by space. If there is more than 2 words, print NF, otherwise $0. Input cellular biol immunogenet, rosario escuela estadist, medellin medellin Expected output...

linux,shell,unix,replace,grep
I have a very huge file which looks like this: <a>text</a>text blah <b>data1</b>abc<b>data2</b> <b>data3</b>blahblah <c>text</c> <d>text</d> <x>blahblah<b>data4 data5 data6</b> <b>data7 </x> That is, its formatting is unpredictable. I need to extract each <b>...</b> item (it might contain multiline text!) and put every one of them in a single separate line....

bash
This question already has an answer here: bash redirect input from file back into same file 7 answers When you try to sort a file in-place with sort afile > afile you silently end up with afile being an empty file. Why is that? I'd expect either an error...

git,bash,shell,unix,binary
I am on a Macbook Pro on Mac OS X 10.10 (Yosemite). When I go to /usr/bin, git is there as a unix executable file. When I open it up in Sublime Text, all I get is unreadable machine code. However, when I open up a different Unix executable file—in...

bash,scope,subshell
I was doing something very simple like: v=5 echo "$v" and expected it to print 5. However, it does not. The value that was just set is not available for the next command. I recently learnt that "In most shells, each command of a pipeline is executed in a separate...

osx,bash,rename
I have a directory called "Theme_1" and I want to capitalize all the filenames starting with "theme". The first letter of every file name is lowercase and I want it to be upcase. I've tried this but all the letters in the filename are upcase, which is not what I...

bash,shell,tail
I want a run a long task on a remote machine (with python fabric using ssh). It logs to a file on the remote machine. What I want to do is to run that script and tail (actively display) the log file content until the script execution ends. The problem...

bash,command-line-arguments
I'm running the following interactive Jar. java -jar script.jar argument-line-here \n Now I'm creating a bash script which runs the jar file. How do I pass the argument line and the conformation "\n" to this interactive script? these are input lines for the script. This question has some answers, expect...